Sheer vs Blockout: Finding the Right Curtain Type

Sheer and blockout curtain fabrics compared side by side

When it comes to dressing your windows, almost every decision starts with one fundamental question: do you want curtains that welcome the light in, or curtains that shut it out? Sheer and blockout curtains sit at opposite ends of the spectrum, and understanding what each type does well will help you make the right choice for every room in your home. In this guide we break down both options so you can shop with confidence.

What Are Sheer Curtains?

Sheer curtains are made from lightweight, translucent fabrics such as voile, chiffon or linen blends. Their open weave allows natural light to filter gently into a room while softening harsh glare and reducing UV exposure. During the day, sheers provide a useful level of privacy — people outside can see movement and shapes but not fine detail — making them a popular choice for street-facing living areas.

Because they are so light, sheer curtains create an airy, relaxed atmosphere that suits contemporary and coastal interiors particularly well. They pair beautifully with timber floors, neutral walls and natural textures. From a practical standpoint, sheers are easy to wash, quick to dry and tend to hold their shape over time without the weight that causes sagging in heavier fabrics.

Sheer curtains work best in living rooms, dining areas, sunrooms and any space where you want to maximise daylight without leaving windows completely bare. They are also an excellent choice for rooms that face a garden or courtyard where total privacy is less of a concern. If you would like to explore our full range of translucent fabrics, visit our sheer curtains page.

What Are Blockout Curtains?

Blockout curtains are constructed from densely woven or foam-backed fabrics designed to prevent light from passing through. A quality blockout curtain will block between ninety-nine and one hundred per cent of incoming light, creating near-total darkness even in the middle of the day. This makes them the go-to solution for bedrooms, nurseries, home theatres and shift workers who need to sleep during daylight hours.

Beyond light control, blockout curtains offer meaningful thermal insulation. The heavy, multi-layered construction acts as a barrier between your window glass and the room, helping to keep warmth in during winter and heat out during summer. Many homeowners notice a measurable difference in their energy bills after switching to blockout curtains, particularly on large west-facing windows that cop the afternoon sun.

Noise reduction is another benefit worth mentioning. While blockout curtains will not soundproof a room, their density absorbs a noticeable portion of external noise — traffic, barking dogs, neighbourhood activity — which can make a real difference in urban homes. For the full selection of colours and fabrics, take a look at our blockout curtains collection.

Head-to-Head Comparison

Sheer Curtains

  • Light control: Filters and softens natural light
  • Privacy: Daytime privacy only
  • Insulation: Minimal thermal benefit
  • Noise: Little to no sound absorption
  • Style: Light, airy and contemporary
  • Maintenance: Machine washable, quick drying
  • Best for: Living rooms, dining areas, sunrooms

Blockout Curtains

  • Light control: Blocks 99–100% of light
  • Privacy: Full privacy day and night
  • Insulation: Strong thermal barrier
  • Noise: Noticeable sound dampening
  • Style: Rich, tailored and substantial
  • Maintenance: Dry clean or gentle machine wash
  • Best for: Bedrooms, nurseries, home theatres

Can You Have Both?

If you find yourself torn between the softness of sheers and the functionality of blockouts, there is a third option that gives you the best of both worlds. Double curtains combine a sheer layer and a blockout layer on the same window, each operating independently on its own track. During the day you can draw the blockouts open and enjoy filtered light through the sheers. At night or whenever you need full darkness, you simply close the blockout layer over the top.

Double curtains are particularly popular in master bedrooms and open-plan living areas where the lighting needs change throughout the day. They also add a layered, designer look that elevates the overall feel of a room. You can mix and match colours between the two layers or keep things tonal for a seamless finish. Learn more about this versatile setup on our double curtains page.

How to Decide: Room-by-Room Recommendations

Living room: Sheer curtains are usually the strongest choice here. They keep the space bright and welcoming during the day while providing enough privacy from the street. If your living room doubles as a media room, consider double curtains so you can block light when needed.

Master bedroom: Blockout curtains are hard to beat for sleep quality. If you also enjoy waking up to soft morning light, a double curtain setup lets you have both options without compromise.

Nursery or children's room: Blockout curtains are essential for daytime naps and early bedtimes during summer when the sun sets late. The thermal insulation also helps maintain a comfortable temperature year round.

Kitchen and dining: Sheer curtains work well in these spaces where natural light is prized and heavy fabrics can absorb cooking odours. A lightweight voile or linen sheer is easy to remove and wash as needed.

Home office: If you deal with screen glare, blockout curtains give you full control. Alternatively, sheers can reduce glare while keeping the room from feeling closed off — it depends on which direction your windows face and how sensitive you are to reflections on your monitor.

Bathroom or laundry: A sheer curtain on a moisture-resistant track offers privacy without blocking ventilation and light. These rooms rarely need full blockout unless they double as a changing area visible from neighbouring properties.

Choosing the right curtain type does not have to be complicated. Think about what each room needs most — light, privacy, insulation or a combination — and let that guide your decision. If you are still unsure, our team is always happy to help you work through the options during a free design consultation.